USBHostLite - USB Host Lite downloaded from NXP web site. Unte…

Users » mshoemaker » Code » USBHostLite

Matthew Shoemaker / Mbed 2 deprecated USBHostLite

USB Host Lite downloaded from NXP web site. Untested! Compiled, dropped on MBED, booted up, and get the console message that it is initializing the stack. I however do not have the ability to connect a USB Memory device to test it.

Dependencies: mbed

Uart/usbhost_uart.c@0:0826fcc5d020, 2010-01-13 (annotated)

Committer:: mshoemaker
Date:: Wed Jan 13 01:29:30 2010 +0000
Revision:: 0:0826fcc5d020

Who changed what in which revision?

User	Revision	Line number	New contents of line
mshoemaker	0:0826fcc5d020	1	/*
mshoemaker	0:0826fcc5d020	2	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	3	* NXP USB Host Stack
mshoemaker	0:0826fcc5d020	4	*
mshoemaker	0:0826fcc5d020	5	* (c) Copyright 2008, NXP SemiConductors
mshoemaker	0:0826fcc5d020	6	* (c) Copyright 2008, OnChip Technologies LLC
mshoemaker	0:0826fcc5d020	7	* All Rights Reserved
mshoemaker	0:0826fcc5d020	8	*
mshoemaker	0:0826fcc5d020	9	* www.nxp.com
mshoemaker	0:0826fcc5d020	10	* www.onchiptech.com
mshoemaker	0:0826fcc5d020	11	*
mshoemaker	0:0826fcc5d020	12	* File : usbhost_uart.c
mshoemaker	0:0826fcc5d020	13	* Programmer(s) : Prasad.K.R.S.V
mshoemaker	0:0826fcc5d020	14	* Version :
mshoemaker	0:0826fcc5d020	15	*
mshoemaker	0:0826fcc5d020	16	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	17	*/
mshoemaker	0:0826fcc5d020	18
mshoemaker	0:0826fcc5d020	19	/*
mshoemaker	0:0826fcc5d020	20	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	21	* INCLUDE HEADER FILES
mshoemaker	0:0826fcc5d020	22	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	23	*/
mshoemaker	0:0826fcc5d020	24
mshoemaker	0:0826fcc5d020	25	#include "usbhost_uart.h"
mshoemaker	0:0826fcc5d020	26
mshoemaker	0:0826fcc5d020	27	/*
mshoemaker	0:0826fcc5d020	28	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	29	* INITIALIZE UART
mshoemaker	0:0826fcc5d020	30	*
mshoemaker	0:0826fcc5d020	31	* Description: This function initializes UART port, setup pin select, clock, parity, stopbits, FIFO etc
mshoemaker	0:0826fcc5d020	32	*
mshoemaker	0:0826fcc5d020	33	* Arguments : baud_rate UART baud rate (115200)
mshoemaker	0:0826fcc5d020	34	*
mshoemaker	0:0826fcc5d020	35	* Returns : None
mshoemaker	0:0826fcc5d020	36	*
mshoemaker	0:0826fcc5d020	37	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	38	*/
mshoemaker	0:0826fcc5d020	39
mshoemaker	0:0826fcc5d020	40	void UART_Init(USB_INT32U baudrate)
mshoemaker	0:0826fcc5d020	41	{
mshoemaker	0:0826fcc5d020	42	USB_INT32U Fdiv;
mshoemaker	0:0826fcc5d020	43	USB_INT32U pclkdiv, pclk;
mshoemaker	0:0826fcc5d020	44	uint32_t SystemFrequency = SystemCoreClock;
mshoemaker	0:0826fcc5d020	45
mshoemaker	0:0826fcc5d020	46	LPC_PINCON->PINSEL0 \|= 0x00000050; /* RxD0 and TxD0 */
mshoemaker	0:0826fcc5d020	47
mshoemaker	0:0826fcc5d020	48	LPC_UART0->LCR = 0x83; /* 8 bits, no Parity, 1 Stop bit */
mshoemaker	0:0826fcc5d020	49	/* Bit 6~7 is for UART0 clock divider. */
mshoemaker	0:0826fcc5d020	50	pclkdiv = (LPC_SC->PCLKSEL0 >> 6) & 0x03;
mshoemaker	0:0826fcc5d020	51	switch ( pclkdiv )
mshoemaker	0:0826fcc5d020	52	{
mshoemaker	0:0826fcc5d020	53	case 0x00:
mshoemaker	0:0826fcc5d020	54	default:
mshoemaker	0:0826fcc5d020	55	pclk = SystemFrequency/4;
mshoemaker	0:0826fcc5d020	56	break;
mshoemaker	0:0826fcc5d020	57	case 0x01:
mshoemaker	0:0826fcc5d020	58	pclk = SystemFrequency;
mshoemaker	0:0826fcc5d020	59	break;
mshoemaker	0:0826fcc5d020	60	case 0x02:
mshoemaker	0:0826fcc5d020	61	pclk = SystemFrequency/2;
mshoemaker	0:0826fcc5d020	62	break;
mshoemaker	0:0826fcc5d020	63	case 0x03:
mshoemaker	0:0826fcc5d020	64	pclk = SystemFrequency/8;
mshoemaker	0:0826fcc5d020	65	break;
mshoemaker	0:0826fcc5d020	66	}
mshoemaker	0:0826fcc5d020	67	Fdiv = ( pclk / 16 ) / baudrate ; /baud rate /
mshoemaker	0:0826fcc5d020	68
mshoemaker	0:0826fcc5d020	69	LPC_UART0->DLM = Fdiv / 256;
mshoemaker	0:0826fcc5d020	70	LPC_UART0->DLL = Fdiv % 256;
mshoemaker	0:0826fcc5d020	71	LPC_UART0->LCR = 0x03; /* DLAB = 0 */
mshoemaker	0:0826fcc5d020	72	LPC_UART0->FCR = 0x07; /* Enable and reset TX and RX FIFO. */
mshoemaker	0:0826fcc5d020	73	}
mshoemaker	0:0826fcc5d020	74
mshoemaker	0:0826fcc5d020	75	/*
mshoemaker	0:0826fcc5d020	76	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	77	* PRINT CHARECTER
mshoemaker	0:0826fcc5d020	78	*
mshoemaker	0:0826fcc5d020	79	* Description: This function is used to print a single charecter through UART1.
mshoemaker	0:0826fcc5d020	80	*
mshoemaker	0:0826fcc5d020	81	* Arguments : ch charecter to be printed
mshoemaker	0:0826fcc5d020	82	*
mshoemaker	0:0826fcc5d020	83	* Returns : None
mshoemaker	0:0826fcc5d020	84	*
mshoemaker	0:0826fcc5d020	85	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	86	*/
mshoemaker	0:0826fcc5d020	87
mshoemaker	0:0826fcc5d020	88	void UART_PrintChar (USB_INT08U ch)
mshoemaker	0:0826fcc5d020	89	{
mshoemaker	0:0826fcc5d020	90
mshoemaker	0:0826fcc5d020	91	while (!(LPC_UART0->LSR & 0x20));
mshoemaker	0:0826fcc5d020	92	LPC_UART0->THR = ch;
mshoemaker	0:0826fcc5d020	93	}
mshoemaker	0:0826fcc5d020	94
mshoemaker	0:0826fcc5d020	95	/*
mshoemaker	0:0826fcc5d020	96	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	97	* PRINT STRING
mshoemaker	0:0826fcc5d020	98	*
mshoemaker	0:0826fcc5d020	99	* Description: This function is used to print a string
mshoemaker	0:0826fcc5d020	100	*
mshoemaker	0:0826fcc5d020	101	* Arguments : str Pointer to the string
mshoemaker	0:0826fcc5d020	102	*
mshoemaker	0:0826fcc5d020	103	* Returns : None
mshoemaker	0:0826fcc5d020	104	*
mshoemaker	0:0826fcc5d020	105	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	106	*/
mshoemaker	0:0826fcc5d020	107
mshoemaker	0:0826fcc5d020	108	void UART_PrintStr (const USB_INT08U * str)
mshoemaker	0:0826fcc5d020	109	{
mshoemaker	0:0826fcc5d020	110
mshoemaker	0:0826fcc5d020	111	while ((*str) != 0) {
mshoemaker	0:0826fcc5d020	112	if (*str == '\n') {
mshoemaker	0:0826fcc5d020	113	UART_PrintChar(*str++);
mshoemaker	0:0826fcc5d020	114	UART_PrintChar('\r');
mshoemaker	0:0826fcc5d020	115	} else {
mshoemaker	0:0826fcc5d020	116	UART_PrintChar(*str++);
mshoemaker	0:0826fcc5d020	117	}
mshoemaker	0:0826fcc5d020	118	}
mshoemaker	0:0826fcc5d020	119	}
mshoemaker	0:0826fcc5d020	120
mshoemaker	0:0826fcc5d020	121	/*
mshoemaker	0:0826fcc5d020	122	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	123	* PRINT FORMATTED STRING
mshoemaker	0:0826fcc5d020	124	*
mshoemaker	0:0826fcc5d020	125	* Description: This function is used to print formatted string. This function takes variable length arguments
mshoemaker	0:0826fcc5d020	126	*
mshoemaker	0:0826fcc5d020	127	* Arguments : variable length arguments
mshoemaker	0:0826fcc5d020	128	*
mshoemaker	0:0826fcc5d020	129	* Returns : None
mshoemaker	0:0826fcc5d020	130	*
mshoemaker	0:0826fcc5d020	131	**************************************************************************************************************
mshoemaker	0:0826fcc5d020	132	*/
mshoemaker	0:0826fcc5d020	133
mshoemaker	0:0826fcc5d020	134	void UART_Printf (const USB_INT08U *format, ...)
mshoemaker	0:0826fcc5d020	135	{
mshoemaker	0:0826fcc5d020	136	static USB_INT08U buffer[40 + 1];
mshoemaker	0:0826fcc5d020	137	va_list vArgs;
mshoemaker	0:0826fcc5d020	138
mshoemaker	0:0826fcc5d020	139
mshoemaker	0:0826fcc5d020	140	va_start(vArgs, format);
mshoemaker	0:0826fcc5d020	141	vsprintf((char )buffer, (char const )format, vArgs);
mshoemaker	0:0826fcc5d020	142	va_end(vArgs);
mshoemaker	0:0826fcc5d020	143	UART_PrintStr((USB_INT08U*) buffer);
mshoemaker	0:0826fcc5d020	144	}

Repository toolbox

Export to desktop IDE

Build repository

Repository details

Type:	Program
Mbed OS support:	Mbed 2 deprecated
Created:	13 Jan 2010
Imports:	110
Forks:	0
Commits:	1
Dependents:	0
Dependencies:	1
Followers:	3

Uart/usbhost_uart.c@0:0826fcc5d020, 2010-01-13 (annotated)

Who changed what in which revision?

Repository toolbox

Repository details

Important Information for this Arm website

Access Warning